High-level access is the tie-hash access via two packages:
OS2::PrfDB and OS2::PrfDB::Sub. First one supports one argument, the name of the file to open, the second
one the name of the file to open and so called Application name, or the primary key of the database.

One may substitute a handle for already opened ini-file instead of the file name (obtained via low-level access functions). In particular, 3 functions
SystemIni(),UserIni(), and
AnyIni() provide handles to the ``systemish'' databases. AniIni will read from both, and write into User database.

Retrieves data from the database given 2-part-key appnamekey. If key is undef, return the ``\0'' delimited list of keys, terminated by \0. If appname is undef, returns the list of possible appnames in the same form.

Return an integer handle associated with the system database. If
val is 1, it is User database, if 2, System database, if 0, handle for ``both'' of them: the handle works for read from
any one, and for write into User one.

DISCLAIMER

We are painfully aware that these documents may contain incorrect links and
misformatted HTML. Such bugs lie in the automatic translation process
that automatically created the hundreds and hundreds of separate documents that you find here. Please do
not report link or formatting bugs, because we cannot fix
per-document problems. The only bug reports that will help us are those
that supply working patches to the installhtml or pod2html
programs, or to the Pod::HTML module itself, for which I and the entire
Perl community will shower you with thanks and praises.

If rather than formatting bugs, you encounter substantive content errors in these documents, such as mistakes in
the explanations or code, please use the perlbug utility included
with the Perl distribution.